A big name in astronomy? (4)
I believe the answer is:
star
This could be a double definition.
'a big name' is the first definition.
(I've seen this before)
'astronomy?' is the second definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'in' is the link.
Can you help me to learn more?
(Other definitions for star that I've seen before include "Chaste, pure" , "Celebrity - heavenly body" , "Bright" , "Outstanding entertainer" , "virtuoso" .)